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Definitive Technology

Definitive Technology Dymension DM80 Floorstanding Bipolar Speaker with Built-In 12" Powered Subwoofer

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Definitive Technology Dymension DM80 Floorstanding Bipolar Speaker with Built-In 12" Powered Subwoofer Overview

Product Information

Model: 300570-01-00-101 | UPC: 747192137199


What's In The Box

Product Information

Model: 300570-01-00-101 | UPC: 747192137199

Room-Filling Sound: Up, Down, and All Around

The Dymension™ DM80 fills your home theater with larger-than-life sound. Crystal clear highs, incredible depth-of-field, and thunderous bass envelop you whether you’re enjoying the latest blockbuster or your favorite songs. Innovations include aluminum oxide tweeters, an adjustable Balanced Double Surround System (BDSS™) bipolar array, an integrated powered subwoofer with 3XR™ Architecture, and a cutting edge GaN FET amplifier.


  • Fully balanced, adjustable bipolar array
  • 5.25" BDSS™ woofers with Linear Response Waveguide™
  • Aluminum oxide tweeters
  • Built-in 12" subwoofer with 400W GaN FET amplifier
  • 3XR™ Architecture with dual bass radiators
  • Patented Intelligent Bass Control

Fully Balanced, Adjustable Bipolar Array

Bipolar driver arrays direct more sound in more directions than traditional speakers for incredible depth of-field and a truly enveloping listening experience. Bipolar effect can be adjusted to optimize for room placement.

BDSS System and Linear Response Waveguide

DM80’s four 5.25" mid/bass woofers feature our patented BDSS technology. BDSS improves midrange driver excursion and provides a wide, uniform soundstage with seamless bass/mid integration. A Linear Response Waveguide™ extends and smooths off-axis dispersion for great sound everywhere in the room.

Aluminum Oxide Tweeters

DM80’s rigid, well-damped aluminum oxide tweeters provide smooth extended response with crisp transients, pinpoint imaging, and exceptional definition, for incredibly lifelike sound.

Built-In 12" Powered Subwoofer

An integrated 12" subwoofer, powered by an all-new, high-performance GaN FET 400W amplifier, delivers clean, detailed bass that perfectly blends with mids and highs and feels consistent no matter where you sit. All-in-one design means simpler setup and a streamlined footprint—no extra subs required.

3XR™ Architecture with Dual Bass Radiators

3XR Architecture—introduced in our critically acclaimed Descend Subwoofer Series— combines a subwoofer and two passive radiators to produce huge, balanced bass in any space, with less distortion than traditional ported designs. It’s low end you can feel— everywhere in the room.

Patented Intelligent Bass Control

Sophisticated digital processing seamlessly blends subwoofer output with mids and highs to provide powerful deep-bass performance without sacrificing midrange clarity. Bass will never get in the way of dialogue and other critical soundtrack elements.


Consistent sound across other Definitive Technology series gives you the flexibility to mix and match Dymension™, Dymension CI, and Mythos speakers to design your dream home theater and whole home system.

DM90 Integrated Height Module Option

Available separately, a DM90 Atmos-certified and DTS:X-compatible height module connects to the top of the DM80 to extend sound above you for total sonic immersion and hyper-realistic overhead effects.


  • Dimensions (W × H × D): 11.3” × 49.4” x 16”
  • Weight: 83.1 lbs
  • Tweeter (2): 1 in. aluminum oxide domes
  • Midrange/Midbass (4): 5.25 in. BDSS™ with Linear Response Waveguide™
  • Bipolar Array: Fully-balanced, adjustable
  • Bipolar Array Adjustment: Fully bipolar (default), forward focus -6dB, variable via bi-amping
  • Subwoofer System Driver Complement
    • (1) 12 in. subwoofer
    • (2) 12 in. passive radiators
  • Frequency Response
    • 23 Hz–30 kHz (-10 dB)
    • 28 Hz–23 kHz (-3 dB)
  • Nominal Impedance: 4Ω (8Ω compatible)
  • Sensitivity: 90dB (2.83V/1m)
  • Recommended Amplifier Power Rating: 50–300W
  • Subwoofer Amplifier: 500W (Peak) GaN FET
  • Intelligent Bass Control: Variable +/– 12dB

What's In The Box

  • Dymension DM80 Floorstanding Bipolar Speaker with Built-In 12" Powered Subwoofer
  • Power Cord
  • (4) Adjustable hard floor glides
  • (4) Adjustable carpet spikes
  • Manual 
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